MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2942f4b52d24096733c6a8373bc3cee7f1823120bf652c688b8296b04a94a96. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 13


Intelligence 13 IOCs YARA 3 File information Comments

SHA256 hash: a2942f4b52d24096733c6a8373bc3cee7f1823120bf652c688b8296b04a94a96
SHA3-384 hash: e3c1ee3cb7cf6230b0f883eb5b084e76367e768bd0c0166206af0bec1ac853f0cddfb007bcea6cc93f789672ea0bc238
SHA1 hash: 3867df3bb4ae32385284fbf55bfa9bbd919c86e9
MD5 hash: 307c54a647190489b955dca752245a33
humanhash: alpha-robin-enemy-alaska
File name:file
Download: download sample
Signature Formbook
File size:67'072 bytes
First seen:2022-11-02 03:37:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'656 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 1536:0Y8FdDxpxIqjKNyj09NVuMxHwkv5SrHMyoMP8gUyj:SxwO3jUNVJlwkv5SrHMyoMP8gUy
Threatray 3'393 similar samples on MalwareBazaar
TLSH T1D463FC9C766071DFC85BC872CAA91C64EA60787B931BD203E05326ADDA4D99BCF150F3
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon d2e8ecb2b2a2b282 (106 x AgentTesla, 106 x Formbook, 24 x RedLineStealer)
Reporter jstrosch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
259
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
DOC.js
Verdict:
Malicious activity
Analysis date:
2022-11-01 10:04:29 UTC
Tags:
formbook trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Launching a process
Creating a file
Searching for synchronization primitives
DNS request
Reading critical registry keys
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Query of malicious DNS domain
Sending a TCP request to an infection source
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 735600 Sample: file.exe Startdate: 02/11/2022 Architecture: WINDOWS Score: 100 39 Snort IDS alert for network traffic 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 5 other signatures 2->45 8 file.exe 15 3 2->8         started        process3 dnsIp4 37 tgc8x.tk 50.115.174.192, 443, 49698, 49699 VIRPUS United States 8->37 29 C:\Users\user\AppData\Local\...\file.exe.log, CSV 8->29 dropped 59 Writes to foreign memory regions 8->59 61 Allocates memory in foreign processes 8->61 63 Injects a PE file into a foreign processes 8->63 13 CasPol.exe 8->13         started        16 CasPol.exe 8->16         started        file5 signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 13->65 67 Maps a DLL or memory area into another process 13->67 69 Sample uses process hollowing technique 13->69 71 Queues an APC in another process (thread injection) 13->71 18 explorer.exe 13->18 injected process9 dnsIp10 31 www.webstephen.com 45.207.106.106, 49704, 49705, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 18->31 33 bunniesfor-sales.site 64.190.62.22, 49708, 49709, 80 NBS11696US United States 18->33 35 8 other IPs or domains 18->35 47 System process connects to network (likely due to code injection or exploit) 18->47 49 Performs DNS queries to domains with low reputation 18->49 22 msiexec.exe 13 18->22         started        25 autoconv.exe 18->25         started        27 autochk.exe 18->27         started        signatures11 process12 signatures13 51 Tries to steal Mail credentials (via file / registry access) 22->51 53 Tries to harvest and steal browser information (history, passwords, etc) 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57
Threat name:
Win32.Trojan.Barys
Status:
Malicious
First seen:
2022-11-01 12:21:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
20 of 41 (48.78%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
d89a71a15d98e59a7d792517efe1391ee01dad79cb6cebf813daa8cd16bdb500
MD5 hash:
acaf0fcacf9ef50564c1f476a2f40e72
SHA1 hash:
69627ee2edb2dbfaa03cd5f12800c988c6190d21
SH256 hash:
a2942f4b52d24096733c6a8373bc3cee7f1823120bf652c688b8296b04a94a96
MD5 hash:
307c54a647190489b955dca752245a33
SHA1 hash:
3867df3bb4ae32385284fbf55bfa9bbd919c86e9
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:INDICATOR_EXE_Packed_ConfuserEx
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe a2942f4b52d24096733c6a8373bc3cee7f1823120bf652c688b8296b04a94a96

(this sample)

  
Delivery method
Distributed via web download

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